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Finding the Third Proportional to 61,808,447 and 128,703,471

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Solution

The third proportional to 61,808,447 and 128,703,471 is: 267,998,700.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,808,447 : 128,703,471 = 128,703,471 : x
  2. Step 2: Convert to fraction form
    61,808,447/128,703,471 = 128,703,471/x
  3. Step 3: Cross multiply
    61,808,447x = 128,703,471 × 128,703,471
  4. Step 4: Simplify right side
    61,808,447x = 16,564,583,447,447,840
  5. Step 5: Solve for x
    x = 16,564,583,447,447,840/61,808,447
  6. Step 6: Final answer
    x = 267,998,700.04

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.